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Wireless Load Weight Monitoring Via a Mobile Device Based on Air Suspension Pressure
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: 2012 Dallas, Texas, July 29 - August 1, 2012 121337075.
Authors: Alexander W Layton, Andrew D Balmos, Derek L Hancock, Aaron C Ault, James V Krogmeier, Dennis R Buckmaster
Keywords: Air bag, load, suspension, truck, weight, wireless
A system was designed and tested to measure pressure in the airbag suspension components of an over-the-road tractor trailer and use those signals to wirelessly display load weight. Three subcomponents (a HID -- human interface device and two DPUs -- digital processing units) were required and communicated using Zigbee wireless devices. Except for a region directly in front of the cab, the unit transmitted weights up to 45 m. Effect of number of calibration points on system accuracy was evaluated.